待到午夜时分 当一个红苹果形电控标志在高楼顶部点亮时 人们就开始欢呼起来

A．At midnight, they begin to cheer as a red apple lights up on top of a tall building．

B．At midnight, they begin to cheer as an electric sign lights up on top of a tall building．

C．At midnight, they begin to cheer as an electric sign in the shape of a red apple lights up on top of a tall building．

D．At midnight, they begin to cheer as a sign in the shape of a red apple light up on top of a tall building．

请帮忙给出正确答案和分析，谢谢！